Today I went to the lfs and purchased a featherduster. Unfortunatly the guy at the store told me that they did not need to be acclimated and could be put right in the tank. As a precautionary measure, I acclimated him for about 15 minutes (after temp was equal) and put him in the tank. It has been about 4 hours and there is no sign of him. Is he officially dead, gonna die within a short time, or is there a possibility of him making it? Water parameters are excellent.